class MarkdownLint::CLI

# File lib/mdl/cli.rb, line 179
def self.probe_config_file(path)
  expanded_path = File.expand_path(path)
  return expanded_path if File.exist?(expanded_path)

  # Look for a file up from the working dir
  Pathname.new(expanded_path).ascend do |p|
    next unless p.directory?

    config_file = p.join(CONFIG_FILE)
    return config_file if File.exist?(config_file)
  end
  nil
end

# File lib/mdl/cli.rb, line 162
def self.toggle_list(parts, to_sym = false)
  parts = parts.split(',') if parts.instance_of?(String)
  if parts.instance_of?(Array)
    inc = parts.reject { |p| p.start_with?('~') }
    exc = parts.select { |p| p.start_with?('~') }.map { |p| p[1..] }
    if to_sym
      inc.map!(&:to_sym)
      exc.map!(&:to_sym)
    end
    { :include => inc, :exclude => exc }
  else
    # We already converted the string into a list of include/exclude
    # pairs, so just return as is
    parts
  end
end

# File lib/mdl/cli.rb, line 122
def run(argv = ARGV)
  parse_options(argv)

  # Load the config file if it's present
  filename = CLI.probe_config_file(config[:config_file])

  # Only fall back to ~/.mdlrc if we are using the default value for -c
  if filename.nil? && (config[:config_file] == CONFIG_FILE)
    filename = File.expand_path("~/#{CONFIG_FILE}")
  elsif filename.nil? && config[:config_file] != CONFIG_FILE
    warn "Config file '#{config[:config_file]}' not found"
    exit 3
  end

  if !filename.nil? && File.exist?(filename)
    MarkdownLint::Config.from_file(filename.to_s)
    puts "Loaded config from #{filename}" if config[:verbose]
  end

  # Put values in the config file
  MarkdownLint::Config.merge!(config)

  # Set the correct format for any rules/tags configuration loaded from
  # the config file. Ideally this would probably be done as part of the
  # config class itself rather than here.
  unless MarkdownLint::Config[:rules].nil?
    MarkdownLint::Config[:rules] = CLI.toggle_list(
      MarkdownLint::Config[:rules],
    )
  end
  unless MarkdownLint::Config[:tags].nil?
    MarkdownLint::Config[:tags] = CLI.toggle_list(
      MarkdownLint::Config[:tags], true
    )
  end

  # Read from stdin if we didn't provide a filename
  cli_arguments << '-' if cli_arguments.empty? && !config[:list_rules]
end